Waste-recovering device for use in making mattresses



T. F. KRONLUNB. WASTE RECOVERING DEViCE FOR USE N MAKING MATTRESSES.

APPLICATION FILED MAELS. I919.

Patented Jan. 25, 1921.

vwentw umTEosTATes PATENT OFFICE.

rirnononn r. inonnunn, or rAcoMA', WASHINGTON, ASSIGNOR or ONE-HALF To nLBEn'r ABERS, or TACOMA, WASHINGTON.

WASTE-RECOVERING DEVICE FOR USE IN MAKING MATTRESSES.

Application filed March 5,

T 0 all whom it may concern:

Be it known that I, THEODORE F. KRON- LUND, a citizen of the United States, and resident of the city of Tacoma, county of Pierce, and State of Washington, have invented certain new and useful improvements in lVaste-Recovering Devices for Use in Making Mattresses, of which the following is a specification.

My invention consists of an apparatus for use in connection with machines such as the felting machines which are used in preparing cotton, wool and other fiber for use in making mattresses.

The object of my invention is two-fold, first to avoid scattering the dust raised in operating upon such material throughout the spaces occupied by the workmen, and second to save a considerable percentage of valuable fiber which otherwise would be wasted.

In the accompanying drawings, I have shown diagrammatically the apparatus which I employ in carrying out my invention. This shows the arrangement which I now prefer to use.

The figure of drawing shows the various pieces of apparatus employed and their relationship to each other.

In the preparation of cotton, wool, jute and other fiber, for such purposes as the making of mattresses, the material is run into a picker and from there to a felting or carding machine. This latter machine in particular, produces a large amount of dust, in which is also mingled small portions of fiber. which would be of value if properly used.

It is the object of my invention to remove and. discharge this dust to a such a point where it will be unobjectionable and to save the valuable fiber masses.

In the drawing, 1, represents a machine which is known as a picker and 2 a machine which is known as a carder or felter. The

material is removed from the picker through Specification of Letters Patent.

Patented Jan. 25, 1921.

centage of fiber is also discharged and wasted. This is objectionable for the reason that it is hard to obtain labor to work around such a machine under these conditions and, in addition, there is a considerable loss of material.

. To obviate this, I have placed a hood 4 so as to cover the working parts of this machine. This is of a pyramidal shape and has the small end upward, this end being connected with the suction pipe 45 which leads to a suction fan 33. The sides of this hood are preferably hinged along the line 40, so that any one of the sides may be raised as desired. This hood serves to carry away from the machine the larger part of the dust which is made by the operation of the machine upon the material.

Beneath the operating parts of the machine I have installed hoods 5. Two such hoods are shown in connection with the machine illustrated, this being a machine having two main rolls. The number of these hoods would correspond with the number of main rolls employed. These hoods connect through pipes 50 with a main pipe 51 which leads to the exhaust fan 33. These lower hoods convey away the particles of fiber which would otherwise fall upon the floor and be scattered in the vicinity of the machine.

The suction fan 33 discharges through a pipe 34: into a dust separator 6. This dust separator is of a commercial type of construction which discharges the air and the fine dust through a central pipe while the heavier particles of the fiber drop -to the bottom and are discharged through pipe 61 to the picker and from there are passed to the bin 3 and into the felting machine or carder 2.

With the above apparatus I have eliminated the trouble from the dust getting into the working room and also save substantially all of the fiber which otherwise would be wasted. I have, therefore, improved the workin g conditions and have saved material.

What I claim as my invention is:

The combination with a felting machine good fiber of said material is delivered from Y of a suction hood placed over the Working the dust separator by gravity, and suction parts, a suction hood placed beneath each of operated means for returning said material 10 the felting rolls, a suction fan connected to from the picker to the rfelter.

: draw from both upper and lower hoods, a Signed at Tacoma, Washington, this 26th dust separator to which the material drawn day of February, 1919. eff is delivered, a picker from Which the THEODORE F. KRONLUND. 

